CVE-2021-22276

free@home System Access Point FW integrity check can be bypassed.

MEDIUM
5.5
CVSS Score
Published: September 23, 2021 at 03:20 PM UTC
Updated: June 17, 2026 at 03:36 AM UTC
12 products affected across 2 vendorsSystem Access Point 127V FirmwareWl System Access Point 127V FirmwareWl System Access Point Firmware

Using System Access Point by ABB?

Get instant alerts when new vulnerabilities affect System Access Point - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%

Description

The vulnerability allows a successful attacker to bypass the integrity check of FW uploaded to the free@home System Access Point.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.6.4
Affected range stops below 2.6.4, so it looks safe — our inference, not a vendor statement
abb-system-access-point-127v (same device)
v < 2.6.4
Affected range stops below 2.6.4, so it looks safe — our inference, not a vendor statement
abb-system-access-point-2-0 (same device)
v < 2.6.4
Affected range stops below 2.6.4, so it looks safe — our inference, not a vendor statement
abb-wl-system-access-point-127v (same device)
v < 2.6.4
Affected range stops below 2.6.4, so it looks safe — our inference, not a vendor statement
abb-wl-system-access-point-2-0 (same device)
v < 2.6.4
Affected range stops below 2.6.4, so it looks safe — our inference, not a vendor statement
abb-wl-system-access-point (same device)
2CKA006200A0071 ≤ v ≤ 2.6.32CKA006200A0105 ≤ v ≤ 2.6.32CKA006200A0130 ≤ v ≤ 2.6.32CKA006200A0155 ≤ v ≤ 2.6.32CKA006200A0156 ≤ v ≤ 2.6.32CKA006220A0136 ≤ v ≤ 2.6.32CKA006220A0240 ≤ v ≤ 2.6.32CKA006200A00712CKA006200A01052CKA006200A01302CKA006200A01552CKA006200A01562CKA006220A01362CKA006220A0240
2CKA006200A0154 ≤ v ≤ 2.6.32CKA006220A0031 ≤ v ≤ 2.6.32CKA006200A01542CKA006220A0031
All versions
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200CWE-354

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card